GB2253489B - Programmable read only memory - Google Patents

Programmable read only memory

Info

Publication number
GB2253489B
GB2253489B GB9104743A GB9104743A GB2253489B GB 2253489 B GB2253489 B GB 2253489B GB 9104743 A GB9104743 A GB 9104743A GB 9104743 A GB9104743 A GB 9104743A GB 2253489 B GB2253489 B GB 2253489B
Authority
GB
United Kingdom
Prior art keywords
memory
programmable read
programmable
read
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
GB9104743A
Other languages
English (en)
Other versions
GB2253489A (en
GB9104743D0 (en
Inventor
Michel Burri
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Motorola Solutions Inc
Original Assignee
Motorola Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Motorola Inc filed Critical Motorola Inc
Priority to GB9104743A priority Critical patent/GB2253489B/en
Publication of GB9104743D0 publication Critical patent/GB9104743D0/en
Priority to EP92101221A priority patent/EP0502305B1/en
Priority to DE69218818T priority patent/DE69218818T2/de
Priority to US07/837,189 priority patent/US5392418A/en
Priority to JP8145092A priority patent/JP2590664B2/ja
Publication of GB2253489A publication Critical patent/GB2253489A/en
Application granted granted Critical
Publication of GB2253489B publication Critical patent/GB2253489B/en
Priority to HK97101741A priority patent/HK1000223A1/xx
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C17/00—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards
    • G11C17/14—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards in which contents are determined by selectively establishing, breaking or modifying connecting links by permanently altering the state of coupling elements, e.g. PROM
    • G11C17/16—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards in which contents are determined by selectively establishing, breaking or modifying connecting links by permanently altering the state of coupling elements, e.g. PROM using electrically-fusible links
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C17/00—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards
    • G11C17/14—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards in which contents are determined by selectively establishing, breaking or modifying connecting links by permanently altering the state of coupling elements, e.g. PROM
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C17/00—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards
    • G11C17/14—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards in which contents are determined by selectively establishing, breaking or modifying connecting links by permanently altering the state of coupling elements, e.g. PROM
    • G11C17/18—Auxiliary circuits, e.g. for writing into memory
GB9104743A 1991-03-06 1991-03-06 Programmable read only memory Expired - Fee Related GB2253489B (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB9104743A GB2253489B (en) 1991-03-06 1991-03-06 Programmable read only memory
EP92101221A EP0502305B1 (en) 1991-03-06 1992-01-27 Programmable read only memory
DE69218818T DE69218818T2 (de) 1991-03-06 1992-01-27 PROM-Speicher
US07/837,189 US5392418A (en) 1991-03-06 1992-02-14 Programmable read only memory with output indicating programming state
JP8145092A JP2590664B2 (ja) 1991-03-06 1992-03-04 非揮発性メモリ・セル
HK97101741A HK1000223A1 (en) 1991-03-06 1997-09-08 Programmable read only memory

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9104743A GB2253489B (en) 1991-03-06 1991-03-06 Programmable read only memory

Publications (3)

Publication Number Publication Date
GB9104743D0 GB9104743D0 (en) 1991-04-17
GB2253489A GB2253489A (en) 1992-09-09
GB2253489B true GB2253489B (en) 1995-06-07

Family

ID=10691104

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9104743A Expired - Fee Related GB2253489B (en) 1991-03-06 1991-03-06 Programmable read only memory

Country Status (6)

Country Link
US (1) US5392418A (enrdf_load_stackoverflow)
EP (1) EP0502305B1 (enrdf_load_stackoverflow)
JP (1) JP2590664B2 (enrdf_load_stackoverflow)
DE (1) DE69218818T2 (enrdf_load_stackoverflow)
GB (1) GB2253489B (enrdf_load_stackoverflow)
HK (1) HK1000223A1 (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9313187D0 (en) * 1993-06-25 1993-08-11 Cotag Int Ltd Coding device
US5635854A (en) * 1994-05-24 1997-06-03 Philips Electronics North America Corporation Programmable logic integrated circuit including verify circuitry for classifying fuse link states as validly closed, validly open or invalid
KR0149259B1 (ko) * 1995-06-30 1998-10-15 김광호 반도체 메모리 장치의 퓨즈 시그너쳐 회로

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4480318A (en) * 1982-02-18 1984-10-30 Fairchild Camera & Instrument Corp. Method of programming of junction-programmable read-only memories
US4730273A (en) * 1986-04-03 1988-03-08 Motorola, Inc. On-chip programmability verification circuit for programmable read only memory having lateral fuses
EP0315819A2 (en) * 1987-11-12 1989-05-17 Motorola, Inc. Method and apparatus for post-packaging testing of one-time programmable memories

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3721964A (en) * 1970-02-18 1973-03-20 Hewlett Packard Co Integrated circuit read only memory bit organized in coincident select structure
US3810127A (en) * 1970-06-23 1974-05-07 Intel Corp Programmable circuit {13 {11 the method of programming thereof and the devices so programmed
US4312046A (en) * 1979-10-04 1982-01-19 Harris Corporation Vertical fuse and method of fabrication
US4609998A (en) * 1983-12-15 1986-09-02 Monolithic Memories, Inc. High conductance circuit for programmable integrated circuit
US4686384A (en) * 1985-08-09 1987-08-11 Harris Corporation Fuse programmable DC level generator
US4757359A (en) * 1986-04-07 1988-07-12 American Microsystems, Inc. Thin oxide fuse
US4935645A (en) * 1988-03-02 1990-06-19 Dallas Semiconductor Corporation Fusing and detection circuit
US4882666A (en) * 1989-03-23 1989-11-21 North American Philips Corporation High frequency high voltage power supply with controlled output power

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4480318A (en) * 1982-02-18 1984-10-30 Fairchild Camera & Instrument Corp. Method of programming of junction-programmable read-only memories
US4730273A (en) * 1986-04-03 1988-03-08 Motorola, Inc. On-chip programmability verification circuit for programmable read only memory having lateral fuses
EP0315819A2 (en) * 1987-11-12 1989-05-17 Motorola, Inc. Method and apparatus for post-packaging testing of one-time programmable memories

Also Published As

Publication number Publication date
EP0502305B1 (en) 1997-04-09
JP2590664B2 (ja) 1997-03-12
GB2253489A (en) 1992-09-09
US5392418A (en) 1995-02-21
GB9104743D0 (en) 1991-04-17
DE69218818T2 (de) 1997-10-16
EP0502305A2 (en) 1992-09-09
HK1000223A1 (en) 1998-02-06
EP0502305A3 (enrdf_load_stackoverflow) 1994-02-02
JPH05190789A (ja) 1993-07-30
DE69218818D1 (de) 1997-05-15

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee